#include "widget.h"
#include "ui_widget.h"

#include <QTimer>

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    ui->lcdNumber->display(10);

    timer = new QTimer(this);

    connect(timer, &QTimer::timeout, this, &Widget::handle);

    timer->start(1000);
}

Widget::~Widget()
{
    delete ui;
}

void Widget::handle()
{
    int value = ui->lcdNumber->intValue();

    if (value <= 0){
        timer->stop();

        return;
    }

    ui->lcdNumber->display(value-1);
}

